The good old radiator
I know this has been discussed to death but here goes. '92 Winnie 454 overheats. I did all the things suggested right up to replacing the radiator i.e. replaced the fan clutch, changed the thermostat,...
Forum Discussion
JimM68 wrote:That was probably true with copper radiators, but most radiators are aluminum. They tend to corrode between the fins and the tubes, which may be able to be cleaned, but at that point, the fins have detached from the tubes. Once the fins have detached from the tubes, the radiator no longer works.
Most common radiator failure is coolant leaking to the floor...
Next is fins packed with crud...
If the fins are clean, coolant is flowing, the radiator pretty much has to cool.
The best way to troubleshoot a radiator is with an IR gun. This will allow you to compare inlet and outlet temps, and confirm the radiator is doing its job.
The only other question I would have is if you are running FI or carburetor. If you are running a carb, you may need to consider if you are running lean at full throttle. I have seen where the mixture enrichment (power valve) was not working, so every time the secondaries opened, the engine leaned out and would overheat. FI can have similar problems, but it will yell at you if it does, which I assume you would not ignore.
Oh, and to actually answer your question, I would not be afraid of a recore. The cans on either end are much thicker and not likely to go bad. I'm going on ~8 years on a recore in my coach.
